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Best muffler?


Speedymaru

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I have a 78 620 with a Weber that I’m wanting to make sound a little better. I eventually want to put a header on it and maybe bump up the pipe size a little, but for now I’m thinking I’ll just replace the muffler to add a little sound. I’ve heard mixed opinions on cherry bombs. I’ve heard the thrush turbo muffler is good. What about just replacing the stock muffler with a piece of straight pipe? Would that cut down on back pressure too much? Just want some advice.

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Any of the 'turbo' mufflers are good.

Hate the sound of a strait through glass pack style, and some don't flow all that good anyway.

 

Needing back pressure is a myth....

Just beware of the fact that when the exhaust flows better, there is less exhaust left in the cylinder to dilute the new incoming charge, and you will need a little more fuel (larger jets).

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Headers suck ass on l series, they don’t seal for shit and they give no extra power. My favorite setup for a bit more sound is a magnaflow as far back as possible with the longest cherrybomb you can fit before it as a resonator. It provides a bit of both worlds and cuts the droning sound turbo mufflers can have. When I was younger, I ran a 24” cherrybomb to a uncapped supertrap...obnoxiously loud but it sounded awesome.

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Knowing what I know now I would get a stock type muffler and just increase the pipe size. I like quiet. Esp for trucks. Walkerexhaust.com website .

I have a Dynomax Super turbo on my 521. Morning its kinda loud. but quiets abit once warmed up.

 

seems anytime one runs a downdraft it makes that Honda go faster sound with a straight thru type muffler(turbo or cherrybomb type, Cam type)

 

with sidefrafts that set up sounds better. I have a Dynomax Ultraflow in a Turbo style and its fairly quiet

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